Electrochemical performance of composite electrodes based on rGO, Mn/Cu metal–organic frameworks, and PANI
Quoc Bao Le, Thanh-Huong Nguyen, Haojie Fei, Constantin Bubulinca, Lukáš Münster, Nikola Bugárová, Matej Mičušík, Rudolf Kiefer, Tran Trong Dao, Mária Omastová, Natalia E. Kazantseva, Petr Sáha
Abstract
Benzendicarboxylic acid (BDC)-based metal-organic frameworks (MOFs) have been widely utilized in various applications, including supercapacitor electrode materials. Manganese and copper have solid diamond frames formed with BDC linkers among transition metals chosen for MOF formation. They have shown the possibility to enlarge capacitance at different combinations of MOFs and polyaniline (PANI). Herein, reduced graphene oxide (rGO) was used as the matrix to fabricate electrochemical double-layer SCs. PANI and Mn/Cu-MOF's effect on the properties of electrode materials was investigated through electrochemical analysis. As a result, the highest specific capacitance of about 276 F/g at a current density of 0.5 A/g was obtained for rGO/Cu-MOF@PANI composite.